INSTALLATION
9
2.8.2
Network Cabling
The Multidrop line is made using RJ45 connectors and a cable having the following
specifications:
•
twisted pair AWG 24 wires
•
120
Ω
impedance
•
maximum network cable length 1200 meters
Pin
Function
Multidrop Cables
1
RS-485 +
2
RS-485 -
3
N.C.
4
VDC –
5
VDC –
6
N.C.
7
VDC +
8
VDC +
5
2
RJ45
5
2
RJ45
1
1
VDC-
RS-485-
RS-485+
Twisted Pair – RS-485 bus
8
5
2
RJ45
8
5
2
RJ45
1
1
Twisted Pair – RS-485 bus
Twisted Pair - Power supply
VDC+
VDC-
RS-485-
RS-485+
When wiring the multidrop cables, note the following:
Pin 8 (or 7) can be connected only if the power has to be propagated from a cradle to a
STARGATE™ base station or STAR-Box™ converter via the cable.
Pins 5 (or 4) should always be connected as reference ground.
To avoid excessive voltage drop, it is recommended not to propagate power between
BC-8060 cradles when used as battery chargers but to supply each cradle
individually. The total number of devices, which can be connected to a single power
supply, depends on the power supply voltage, the wire length and resistance and
therefore the voltage drop. Do NOT connect VDC+ between network devices that are
individually powered.
Data
only
Data
and
Power
Supply
Pin 1
Содержание PowerScan D8300
Страница 2: ...PowerScan D8330 M8300 M8300 DK Reference Manual...
Страница 14: ...INSTALLATION 5 2 3 RS 232 CONNECTION 2 4 USB if required...
Страница 15: ...POWERSCAN D8330 M8300 M8300 DK 6 2 5 IBM USB POS if required...
Страница 16: ...INSTALLATION 7 2 6 WEDGE CONNECTION 2 7 PEN EMULATION CONNECTION...
Страница 244: ......